/Engine/Plugins/Media/ElectraCodecs/Source/ElectraDecoders/Public/IElectraDecoderOutputAudio.h
Returns a pointer to the start of the decoded data for the specified channel. This can be used for interleaved data as well although you would normally ask for the data pointer of channel 0 to get the base address of the interleaved data.
const void * GetData ( int32 InChannelNumber ) const